According to a statement by Biden's attending physician, published on the White House website, the American president "continues to feel good."
"This morning, as expected, his SARS-CoV-2 antibody test remains positive," the statement said.
On July 21, Biden passed a positive test for a coronavirus infection, while on July 27 the test showed a negative result and the head of the United States announced his return to full-time work after suffering COVID-19.
On July 30, Biden tested positive for COVID-19 again and went into quarantine.